<template>
  <div class="header">
    <van-icon name="arrow-left" class="icon" @click="toBack" />
    <div>{{title}}</div>
    <div class="edit" v-if="edit" @click="handleEdit">
    {{ store.state.edit ? "编辑" : "完成"}}
    </div>
  </div>
</template>

<script>
import { Toast } from 'vant'
import { useRouter } from 'vue-router'
import { useStore } from 'vuex'
export default {
  props: ['title', 'edit'],
  setup() {
    const router = useRouter()
    const store = useStore()
    const toBack = () => {
      router.back()
    }
    const handleEdit = () =>{
      if(store.state.cartList.length){
        store.commit('edit')
        store.commit('changeDelete')
      }else{
        Toast.fail('请添加商品到购物车!')
      }
    }
    return {
      toBack,
      handleEdit,
      store
    }
  }
}
</script>

<style lang="less" scoped>
  .header {
    background-color: #fff;
    height: 40px;
    font-size: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid #d7d7d7;
    .edit {
      font-size: 16px;
      position: absolute;
      right: 15px;
      font-weight: normal;
    }
    .icon {
      position: absolute;
      left: 10px;
    }
  }
</style>
